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Full Discussion: search a file between two begin and end strings in c
Top Forums Programming search a file between two begin and end strings in c Post 302557684 by uday.sena.m on Wednesday 21st of September 2011 11:48:03 PM
Old 09-22-2011
This is only for the process NEWOLUF2 after this i'll change to other process and the content is in a file from the file we have to read the data and perform the task the exact scenario is as follows..

Please write a C program that give us sufficient performance statistics on the WSodrms server.
The program name should be WSodrmsStatistics.c.


The program should do the folloiwing:

1) It should have -s -e options to read start and end of timer interval we want to measure.
2) Scan throgh the log file and pick all NEWOLUF2 tranactions from the logfile within the user defined time interval
3) Save the TimeStamp and ElapseTime in a structure, which you add to a list with AddToTailAL():

typdef struct {
char *strTransactionName[LEN_TRANS_NAME + 1];
int intTimeStamp;
int intElapseTime;
}

3) Calculate the average value over the elements in the list.
4) Print with Logging functions (LOGTYPE_NOPREFIX) the following information:
Transaction name = <strTransactionName> TimeInterval <HHMISS - HHMISS> Average Elapse Time: <XX.XX>
show the result in Seconds with 2 decimals (SS.SS)
 

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LEARN ABOUT OSF1

reltimer

reltimer(3)						     Library Functions Manual						       reltimer(3)

NAME

       reltimer - Establishes timeout intervals of a per-process timer

LIBRARY

       Standard C Library (libc.a)

SYNOPSIS

       #include <sys/timers.h>
       int reltimer(	  timer_t tmrid,      struct itimerspec *val,	   struct itimerspec *oval) ;

PARAMETERS

       Specifies  the  per-process timer to access.  Points to a type itimerspec structure containing the values of the initial and offset timeout
       intervals.  Points to a type itimerspec structure where the current value of the timer timeout  interval  and  the  time-to-go  are  to	be
       stored.

DESCRIPTION

       The  reltimer()	function establishes initial and offset timeout intervals of a per-process timer specified by the tmrid parameter. Initial
       and offset timeout interval information is stored in an itimerspec structure pointed to by the val parameter. When  the	per-process  timer
       specified  by the tmrid parameter is active, after timeout of the initial time interval, all subsequent timeouts are controlled by the off-
       set timeout value; as long as tmrid continues to operate, the offset values pointed to by the val parameter are	used  as  the  per-process
       timeout interval. The current timeout interval and the time-to-go are returned to the location pointed to by the oval parameter.

       Initial	and offset time information for the per-process timer is stored in space reserved by a type itimerspec structure pointed to by the
       val parameter. A type itimerspec structure is also used to store returned time information specified by the oval parameter. The	itimerspec
       structure is defined in the sys/timers.h include file.

NOTES

       Time  values smaller than the resolution of the specified timer are rounded up to the resolution value. Time values larger than the maximum
       timeout value of the specified per-process timer are rounded down to that maximum value.  Trial use

RETURN VALUES

       Upon successful completion, the reltimer() function returns 0 (zero).  Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       If the reltimer() function fails, errno may be set to the following value: The timerid parameter does not specify an allocated  per-process
       timer, or the val parameter points to a nanosecond value less than zero or greater than or equal to 1000 million.

RELATED INFORMATION

       Functions: alarm(3), getclock(3), gettimer(3), mktimer(3) delim off

																       reltimer(3)
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